2026-09-15
capital
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OpenAI in funding talks at a $1.2T valuation
Roughly $2B per month in revenue; IPO pushed to 2027. Came three days after the company backed a pacing agreement.
timelines ▲ faster concentration ▲ closed safety —
Bad Watch by 2029
AI Capex Bust
Trillion-dollar buildout outruns revenue; a financial contagion follows the correction.
Probability this branch occurs by 2029
20–35%
20–35%
1 revision · 0/2 tripwires crossed
The scenario
The technology works but the timing does not. Datacenters built for 2028 demand sit idle in 2027; debt raised against future revenue is repriced; a hyperscaler or a major lab cannot refinance. Like the 2001 telecom bust, the infrastructure survives and is later used, but the crash takes pensions, credit and a political mandate with it. Ironically, a bust slows every other branch, including the good ones.
Preconditions
- Capex growth above revenue growth for two more years
- Debt-financed buildout (increasingly true)
- A demand or efficiency shock (e.g., algorithmic gains that cut compute needs)
Leading indicators
- Capex/revenue ratios at hyperscalers and labs
- Credit spreads on AI-linked debt
- Datacenter utilization
Tripwires
Observable thresholds. When one crosses, the scenario's status changes and the weekly re-run is brought forward.
clearcb-t1
A hyperscaler cuts announced capex guidance by more than 25%
clearcb-t2
A frontier lab or major AI-infrastructure lender defaults or is rescued
Playbook
Prevent
- Regulators: capital requirements that recognize concentration
- Investors: separate infrastructure returns from lab equity narratives
Detect
- Quarterly financial tracking against the indicators.
Respond
individuals
- Check pension and index exposure to AI-linked concentration; diversify
- A bust is a buying opportunity for compute and talent if you have runway
organizations
- Lock in compute pricing before a bust only if you have exit clauses; after a bust, renegotiate everything
- Avoid dependence on vendors whose survival depends on refinancing
governments
- Prepare orderly-resolution mechanisms for systemically important AI firms, as for banks
- Keep public compute (national labs, universities) so research continues through a private bust
Recover
- As in 2001, cheap stranded infrastructure seeds the next wave; policy should ensure it stays available rather than being scrapped.
Probability history
Every change is logged with its reason and the signals that drove it. Moves are bounded per week; a jump beyond the bound is flagged as a shock.
Probability range over time
Your estimate
Disagree with our range? Set yours. Estimates feed a community view that appears once enough people weigh in, and the weekly run reads the gap between our number and yours.
28%
2026-09-16
20–35%
seed
Seed estimate. Big-5 capex above $750B in 2026, OpenAI at a $1.2T valuation on ~$24B annualized revenue, Oracle's $664B backlog half-dependent on one customer, and Pentagon-backed compute loans: the leverage is real even if the technology delivers.
Signals pushing on this branch
2026-09-12
compute
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Microsoft targets 38 GW of datacenter capacity by 2032; big-5 capex above $750B in 2026
Oracle backlog $664B (about half OpenAI); GPU utilization near 98%; Pentagon-backed loan to Fluidstack.
timelines ▲ faster concentration ▲ closed safety —
Built on
Every source reviewed for this scenario. The full ledger is public.
| Date | Source | Publisher | Type |
|---|---|---|---|
| 2026-09-12 | Microsoft targets 38 GW of datacenter capacity by 2032 Big-5 capex >$750B in 2026; Oracle backlog $664B. | Eastern Herald | news |
| 2026-09-15 | OpenAI in talks at $1.2T valuation | TECHi / FT | news |